Catalina Island Marathon
Avalon, United States • 14 Mar 2026
Event overview
The Catalina Island Marathon, 10K, 5K is scheduled for March 14, 2026 in Avalon, Catalina Island, CA 90704, US. The 2026 running is the 48th annual edition and is presented as California’s State Off-Road Marathon Championship and the oldest trail marathon in the state. The course runs through the Catalina Island Conservancy and uses island trails with ocean views and rolling hills. The event includes a combined challenge that links the 2026 marathon, the 2026 Catalina Island Half Marathon, and the 2027 Avalon 50M/50K.
Race details
- 26.2 miles - Marathon; open to ages 16 to 100.
- 6.2 miles - 10K.
- 3.1 miles - 5K.
- Kids Run - short youth event; open to ages 3 to 13.
- Triple Crown Challenge - combined entry covering specified races across 2026 and 2027.
Organizers announced a one-year date change from March 7 to March 14, 2026 and provide two accommodation options for registered participants: roll entries to the new date or defer entries to 2027 through their registration account. Additional event pages noted information on courses, aid stations, packet pick up, awards and rules, travel and lodging, sustainability, and sponsors. Visit the organization's website for the most recent information.